Enabling LCD 7 inch cape rev A3

[Sathishkumar Duraisamy]

Hi all,

I have trying to enable LCD 7 inch cape with beaglebone black board. I am using Yocto Daisy. And linux kernel 3.14. Could you please help to enable LCD.

DMESG:

matchbox: Cant find a keycode for keysym 269025050
matchbox: ignoring key shortcut XF86Start=!matchbox-remote -desktop

[settings daemon] Forking. run with -n to prevent fork

** (matchbox-panel:530): WARNING **: Failed to load applet "battery" (/usr/lib/matchbox-panel/libbattery.so: cannot open shared object file: No such file or directory).
tilcdc 4830e000.lcdc: timeout waiting for framedone



Thanks and Regards,
Sathishkumar D

[Sathishkumar Duraisamy]

Hi,

After going through the source of LInux Kernel 3.14, I have identified, there is missing driver in git.yoctoproject.org.linux-yocto-3.14/drivers/video/omap2/displays-new/. Do we require a panel driver over here or just modifying the dts to include panel node with
compatible string "ti,tilcdc,panel" is sufficient for enabling beaglebone black cape 7 inch LCD>


( Is this a right mailing list for asking these questions? If not could you please suggest the mailing list for asking the same. )

Thanks and Regards,
Sathishkumar D

[Robert Nelson]

On Thu, Jun 19, 2014 at 11:21 PM, Sathishkumar Duraisamy
<bewith...@gmail.com> wrote:
> Hi,
>
> After going through the source of LInux Kernel 3.14, I have identified,
> there is missing driver in
> git.yoctoproject.org.linux-yocto-3.14/drivers/video/omap2/displays-new/.

Those are for the "omapdss" ip block, not found on the am335x.

> Do
> we require a panel driver over here or just modifying the dts to include
> panel node with
> compatible string "ti,tilcdc,panel" is sufficient for enabling beaglebone
> black cape 7 inch LCD>

You need to modify your dts for that lcd simliar to:

https://github.com/beagleboard/devicetree-source/blob/master/arch/arm/boot/dts/BB-BONE-LCD7-01-00A3.dts#L236

Regards,

--
Robert Nelson
http://www.rcn-ee.com/